Chinese Space Programs: Ionosphere Tracking Of Seismo-electromagnetic Signal
- Paper number
IAC-07-B1.6.05
- Author
Dr. Dong Jiping, China Academy of Space Technology (CAST), China
- Year
2007
- Abstract
Earthquakes killed at least 1.5 million people over the past century, with one-third of the destructive temblors occurring in China, and claiming 55 per cent of the total deaths. In 1976, Tangshan Earthquake in Hebei Province killed at least 240,000 people. Scientists and engineers have long been seeking to apply space technology to help mitigate losses caused by natural disasters. In 2003, the United States launched Quakesat 1, an earth observation nanosatellite for collecting earthquake precursor signals from space and in 2004, France blasted off a satellite for detection of electromagnetic emissions transmitted from earthquake regions (DEMETER). Electromagnetic phenomena have been recognized as a promising candidate for the short-term earthquake prediction(Hayakawa, 2005). Compared with ground monitoring facilities, satellite sensors cover far larger swathes, and could gather more data faster. Another experimental micro-satellite which is planned to detect electromagnetic precursor signal associated with earthquakes will be launched about 2010. The micro-satellite is mainly developed by Chinese Academy of Space Technology(CAST) and the monitoring in the ionosphere will be combined with the observational network in the ground for scientists to analyze the data. In order to attain better observation results for global earthquake monitoring, a satellite constellation (4-8 satellites) is also planned to form after 2015. China looks forwards to international co-operation in developing the satellite. We are open to various kinds of collaboration, including supply of payload and other equipments, building of ground station for receiving data abroad, funding and data sharing. In the paper, the three aspects are introduced as follows: The satellite platform and payload; The frequency range analysis of Seismo-Electromagnetic Signal by non-linear theory and micro- cracking mechanism; The preliminary distribution of ground station for receiving data in China.
- Abstract document